Error Message - Relationships cannot be set when there are existing assigned levels

Error Message - Relationships cannot be set when there are existing assigned levels

Overview  

If you receive the above message when trying to create a Relationship stock item, it is because the system will not allow relationships to be created if any of the items involved are currently assigned to existing sales orders.

Resolution/Solution 

You will need to either process and issue the sales orders or unallocate stock from the sales order.